string-comparison

I want apple and Apple comparison to be true . Currently "Apple" == "Apple" # returns TRUE "Apple" == "APPLE" # returns FALSE molf You're looking for casecmp . It returns 0 if two strings are equal, case-insensitively. str1.casecmp(str2) == 0 "Apple".casecmp("APPLE") == 0 #=> true Alternatively, you can convert both strings to lower case ( str.downcase ) and compare for equality. In Ruby 2.4.0 you have: casecmp?(other_str) → true, false, or nil "abcdef".casecmp?("abcde") #=> false "aBcDeF".casecmp?("abcdef") #=> true "abcdef".casecmp?("abcdefg") #=> false "abcdef".casecmp?("ABCDEF") #=> true

Is there a simple ignore-case-comparison for PostgreSQL? I want to replace: SELECT id, user_name FROM users WHERE lower(email) IN (lower('adamB@a.com'), lower('eveA@b.com')); With something like: SELECT id, user_name FROM users WHERE email IGNORE_CASE_IN ('adamB@a.com', 'eveA@b.com'); The like and ilike operators work on single values (e.g. like 'adamB@a.com' ), but not on sets. First, what not to do, don't use ilike... create table y ( id serial not null, email text not null unique ); insert into y(email) values('iSteve.jobs@apple.com') ,('linus.Torvalds@linUX.com'); insert into y(email)

I am learning fuzzywuzzy in Python. I understand the concept of fuzz.ratio , fuzz.partial_ratio , fuzz.token_sort_ratio and fuzz.token_set_ratio . My question is when to use which function? Do I check the 2 strings' length first, say if not similar, then rule out fuzz.partial_ratio ? If the 2 strings' length are similar, I'll use fuzz.token_sort_ratio ? Should I always use fuzz.token_set_ratio ? Anyone knows what criteria SeatGeek uses? I am trying to build a real estate website, thinking to use fuzzywuzzy to compare addresses. Rick Hanlon II Great question. I'm an engineer at SeatGeek, so I

I am trying to compare strings in bash. I already found an answer on how to do it on stackoverflow . In script I am trying, I am using the code submitted by Adam in the mentioned question: #!/bin/bash string='My string'; if [[ "$string" == *My* ]] then echo "It's there!"; fi needle='y s' if [[ "$string" == *"$needle"* ]]; then echo "haystack '$string' contains needle '$needle'" fi I also tried approach from ubuntuforums that you can find in 2nd post if [[ $var =~ regexp ]]; then #do something fi In both cases I receive error: [[: not found What am I doing wrong? [[ is a bash-builtin. Your /bin

I need to compare strings to decide whether they represent the same thing. This relates to case titles entered by humans where abbreviations and other small details may differ. For example, consider the following two titles: std::string first = "Henry C. Harper v. The Law Offices of Huey & Luey, LLP"; As opposed to: std::string second = "Harper v. The Law Offices of Huey & Luey, LLP"; A human can quickly gauge that these are most likely one and the same. The current approach I have taken is to normalize the strings by lowercasing all letters and removing all punctuation and spaces giving: std:

I am trying to write a C code which takes arguments in main; thus when I write some strings in cmd, the program doing somethings inside it. But I am doing something wrong and I can't find it. This is the code: #include <stdio.h> #include <stdlib.h> int main(int argc, char * argv[]){ //File name is main.c if(argc != 3) printf("Wrong!!!!!!!!!"); else if (argv[1] == "-s") girls(); //Prints "Girls" else if(argv[1] == "-k") boys(); //Prints "Boys" else printf("OMG!!"); } In the cmd; gcc -o gender main.c gender -s pilkington I enter that commands. Bu the output is always "OMG!!" Which part is wrong?

When comparing two strings, I was taught that we shouldn't use the logical operator (==). We should use String.equals(String) for the comparison. However, I see that the following code complies and prints " Hello Friend " with the latest JDK(1.6_23). I tried searching around and couldn't find any reference. From when is this happening? public class StringComp{ public static void main(String args[]){ String s = "hello"; if(s=="hello"){ System.out.println("Hello Friend"); }else{ System.out.println("No Hello"); } } } You shouldn't use == because it does something else then you think. In this case